Pump-valve.



G. O. LUCAS.

PUMP VALVE.

APPLICATION PILED AUG. 24, 1910.

Patented Sept. 19, 1911.

CHARLES 0. LUCAS, OF DAYTON, OHIO.

PUMP-VALVE.

Specification of Letters Patent.

Patented Sept. 19, 1911.

Application filed. August 24, 1910. seral No. 578,785.

To all who'm it may concern:

Be it known that I, CHARLES O. LUoAs, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Pump-Valves; and I dodeclare the following to be a full, clear, and eXact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

This invention relates to new and useful improvements in pump valves.

The Object of the invention is to provide a punp valve so constructedthat liquid may freely pass through the guides and housing when fiowingthrough the valve and whereby the valve mechanism so subjected to thefiowing liquid is maintained in a cleansed condition.

A further Object of the invention is to provide a valve with individualguide members so that an unobstructed outlet is obtained, and a valvewhich is unrestricted in its movement to the limit of its Openingmovement so that it may rotate to find a new seat or a new point ofengagement between the valve and its seat.

In the accompanying drawings which illustrate my improved pump valve,Figure 1 is a vertical sectional view, Fig. 2 is a view similar to Fig.1 with the valve shown raised from its seat. Fig. 3 is a Perspectiveview of the valve disk. Fig. 4 is a cross section on the line a-a ofFig. 1.

In the description and drawings similar reference characters indicatecorresponding parts.

1 designates the valve housing havin a deck 2. Within said deck is agrid ess valve seat 3 which may or may not be an integral part of saiddeck. Owing to the said valve seat being of a gridless character, anextra large passage for the fluid passing therethrough is provided.Coperating with the seat 3 is a disk 4 of the valve, said disk beingprovided with a facing of rubber 5 or any other yielding material. Theback pressure of the fluid against the valve is resisted by the disk 4and not by the rubber facing 5 which takes up any uneven wear of thevalve seat. The valve can therefore be cheaply constructed and may beused on extremely high pressures. The rubber facing 5 is attached to thedisk 4 by a bolt 6 and is therefore easily removable.

Projecting upwardly from the valve disk 4 is a plurality of parallelguides 6 which form a cage. These guides 6 slide in an annular flange 7which projects from the valve cap 8. The ends of the guide 6 abut withthe valve cap 8 when the valve disk 4 is in its upper position away fromits seat. The length of the. said guides 6 and the depth of the flange 7are such, that, when the valve disk 4 is in its upper position it willnot engage the flange 7 but will provide an Opening 9 through which theliquid may pass and be instrumental in washing out all parts of thevalve mechanism. A spring 10 is provided between the valve disk 4 andthe cap 8 to normally hold said disk on its seat.

Having described my invention, I claim:

In a pump valve, the combination with a housing provided with upper andlower alined openings, of a valve disk 4 coperating with said lowerOpening, an elastic disk 5 secured to said disl: 4, a series of guidemembers 6 extending from the valve disk 4 and lying inwardly from theperiphery thereof, a compression spring 10 eXtending from said valvedisk 4, a cap 8 having a flange 7 extending through the upper' openingof said housing, said cap providing an abutment for the valve guidemembers 6, and a flange 7 coperating with said members 6 in guiding thevalve disk 4, said flange 7 being of a length less than the length ofthe guide members 6 whereby an Opening is provided above the valve diskthrough which liquid may flow when the valve is open, substantially asspecified.

In testimony whereof I afliX my signature, in presence of two witnesses.

CHARLES O. LUCAS.

Witnesses:

MATTHEW SIEBLER, R. J. MCCARTY.

Copies of this patent may be obtained for five cents each, by addressingthe Commssioper of Patents, Washington, ID. C.

